See? This is why I can't keep up with anything after TNG. I missed too much of DS9 when it was on, didn't watch but like two episodes of VOY, and only sporadically saw ENT. I keep trying to go back and watch them on Netflix, but other shows keep popping up and distracting me. Plus, I have all this awesome writing to do (thank you, everyone). I've got my country's five hundredth anniversary to plan, my wedding to arrange, my wife to murder and Guilder to frame for it; I'm swamped.

There are no 'demon thingys', Joe, unless you mean the Pah-wraiths. And they are basically just the evil versions of the wormhole aliens, that've been sealed away to keep them from killing stuff.

See, that's what I never got.

Basically:

Wormhole Aliens: Lah-di-dah, we are not corporeal, let us have noncorporeal fun.
Psycho Wormhole Aliens: Nah, let's BURN THINGS NYAHAHA.
Wormhole Aliens: ...Nope. *lock the lunatics away because they're really harshing the mellow*
Bajorans: *call the Wormhole Aliens the Prophets, and the evil locked away ones the Pah-wraiths*
Pah-wraiths: ...Ooh, we like the sound of that. Now somebody let us out so we can BURN THINGS NYAHAHA.

Wormhole Aliens: Lah-di-dah, we are not corporeal, let us have noncorporeal fun.
Psycho Wormhole Aliens: Nah, let's BURN THINGS NYAHAHA.
Wormhole Aliens: ...Nope. *lock the lunatics away because they're really harshing the mellow*
Bajorans: *call the Wormhole Aliens the Prophets, and the evil locked away ones the Pah-wraiths*
Pah-wraiths: ...Ooh, we like the sound of that. Now somebody let us out so we can BURN THINGS NYAHAHA.